Misconfigured Llama.cpp Servers Expose Sensitive User Prompts
Attack on AI3 Confirmed exploitationData leakInfrastructure vulnerability
Misconfigured llama.cpp servers publicly exposed user prompts and interactive roleplay scenarios due to improper deployment. The exposure revealed sensitive data, though no real-world loss has been confirmed.
Details
- type
- Attack on AIAn AI model, agent or AI-powered product was the thing exploited, abused or leaked.
- categories
- Data leakprimaryTraining data, chat logs, system prompts, model weights or other AI-system data exposed.
- Infrastructure vulnerabilityCVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
- Data leakprimary
- mitre atlas
- no technique for these categoriesBoth rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
- severity
- 3 · Confirmed exploitationUsed against real targets; limited or unclear impact.
- targets
- Open-weight model, Framework / tooling
- products
- llama.cpp
- incident date
- 11 Apr 2025
- first reported
- 11 Apr 2025
- origin
- AI Incident DatabaseDerived from the AI Incident Database (CC BY-SA 4.0).
- classifier confidence
- 0.85 · published at or above 0.80; see the methodology
- tags
- llama.cpp · data-leak · misconfiguration
- record
- created 2026-10-18 06:33Z · updated 2026-10-18 06:59Z · json
Sources · 1
- 2025-04-11Reportedly Unsafe Deployment of Llama.cpp Reveals Interactive AI-Generated CSAM Roleplay PromptsAI Incident Database · incidentdatabase.ai/cite/1020
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